142403011 has 4 divisors (see below), whose sum is σ = 142438552. Its totient is φ = 142367472.

The previous prime is 142403003. The next prime is 142403029. The reversal of 142403011 is 110304241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110304241 = 73 ⋅1511017.

It is a cyclic number.

It is not a de Polignac number, because 142403011 - 2³ = 142403003 is a prime.

It is a super-2 number, since 2×142403011² = 40557235083732242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142403111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10866 + ... + 20071.

It is an arithmetic number, because the mean of its divisors is an integer number (35609638).

Almost surely, 2^142403011 is an apocalyptic number.

142403011 is a deficient number, since it is larger than the sum of its proper divisors (35541).

142403011 is an equidigital number, since it uses as much as digits as its factorization.

142403011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35540.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 142403011 is about 11933.2732726608. The cubic root of 142403011 is about 522.2034347968.

Adding to 142403011 its reverse (110304241), we get a palindrome (252707252).

The spelling of 142403011 in words is "one hundred forty-two million, four hundred three thousand, eleven".